[AP1150ADSXX]

014011331-E-00

- 11 -

2014/10

11. Description

11.1 DC Characteristics

 Line Regulation

 Load Regulation

0

-35

15

5

10

20

-5

-15

V

10

±0

-10

-25

15

5

-20

-30

V

2.0V

3.0V

4.0V

5.0V

0

-40

10

5

100

200

-5

-15

I

±0

-10

-25

150

50

-20

-35

-30

V

V

V

 Stability Point

 Dropout Voltage versus Output Current

-100

-200

20

100

300

-20

-60

V

±0

-40

-100

200

0

-80

-120

-140

-160

I

I

-180

I

0

-200

±0

-40

100

200

-80

-120

-20

-60

-100

-160

-140

-180

I

11.2 Input / output capacitors

Linear regulators require input and output capacitors in order to maintain the regulator's loop stability. The

equivalent series resistance (ESR) of the output capacitor must be in the stable operation area. However, it is

recommended to use as large a value of capacitance as is practical. The output noise and the ripple noise

decrease as the capacitance value increases. ESR values vary widely between ceramic and tantalum capacitors.

However, tantalum capacitors are assumed to provide more ESR damping resistance, which provides greater

circuit stability. This implies that a higher level of circuit stability can be obtained by using tantalum capacitors

when compared to ceramic capacitors with similar values.

For output voltage device 2.0V applications, the recommended value of CL0.10F.

For output voltage device 1.5V applications, the recommended value of CL0.22F